Heating device



Nov 9 1926.

E. STEIGERWALT HEATING DEVICE Filed Feb. 20,

ATTQRNEV.

Patented Nov. 9, 1926.

entree ere-res rise r e rests.

ELROY STEIGERWALT, 0F DUN'KIBK, INDIANA, ASSIGNOR OE ONE-BALE TO J wrrrrn, on BUNK-rials, rum-ANA.

'HEATING. DEVICE.

Applieation filed Eehru ary 20, 1925. Serial No. 16,703.

The present invention relates. to improvets i heate de i es. for i me ils sr eri o he a -V las c si t of a metal receptacle or shell open at its front and closed at its rearward end and which'is supported in position to surround a portion of the exhaust pipe from the engine, there being a conduit extendingfrom the saidreceptacle, and through which condui th Warm e h ha be n ge e a e in the receptacle, is conveyed to the interior of the car. v A problem i e e of suc hea ers, has been that of avoiding an overheat ng of theheater device itself, and of. the consequent deterioration of same during the season when heat for the interior of the car is n required Moreover the e has b e the hazard of injuryand even combustion of parts oit' the car body due to heat trans mitted from the body ,of the heater, duringthe time whensanie is not normally passing throughvthe conduit and to, the interior oi the car. l

The object of the present invention is to provide is 1 ,3 .6 de i ic is Capa l of being economically manufactured, and easily lI StMlGd. A further object of the invention is to. provide ineans combined with and which is a part of the receptacle structure, whereby the contents of the said re ceptacle maybe permitted to freely escape, independently of the normal escapement thereof at such times as the heat contents are being delivered to the car interior.

v The above general objects, and also certain more specific purposes of my invention are accomplished by the new construction, combination and arrangement of parts shown and described infthe accompanying drawings and specifications; Theinvention is defined in the appended claims.

In the several views in the drawings, the d ffe en p rts o the e t o a dsnt Ifis hyuitsbl c rac o refe ce Figure 1 is a side View showing my improved heater device installed in operative position. Y

Figure '2. isa top plan view taken on the line 2-2 in Figure 1.

Figure is a bottom plan view of the rear portion of the end-joint and neck of thereceptacle, a portion of the closure sleeve beingbroken away.

Figure 4: is a detached enlarged detail View s i g the ra gem nt. o the sa 1' i t, clo ure sl v and. lsmn d vi s t 5 is an en arged side. v ew .eit nd t hssd- R se 6 is v rtical e t ona v ew on the line 6-6 in Figure 7, a portion of the s w-' t le lsb ne br ken sway- Figure 7 is an enlarged top plan view of th c n it head.-

Figure' 8 is a plan view of the control s imb s, th ond t b ing show in ction, and

F g re 9 i s s cti n det ie of h connection for the'c-ontrol thirnble.

is received and contained, is made of sheet or cast rnetal, thett'orrner being preferred. l l y se e in of sbsstosm y s u e itdesired. For ,the exhaust pipe arrange mer t of cars of the ordinary or standard size, this receptacle n ay be about thirty i che eng and sho th e n hes in di mets Th f rwa d connecl is s of hi ,r ssp ss s so. devised-tha n di sn to hei finenes he ina e c bed th y serve to. supp t .the recepsk 0. exh us P11??? n. suc align 1 ll I l -l l to th 50 4" 3 Qt 12 6. .9941, tha right ngl .sqe est e i ier th s i t a ads t he nterio ofjc hs ea ar available. l I

he f rd n ith s ,syli r cel centacle is supportedby a metal support bar B whic is be o th d s red si gl a shown n F g r 1-, h s. supp rt. bar i pro d a ts end h a U- .shsnsd yok having the sides B- Said yoke engages th e n sides f t .i sli is po tion 'o the said exhaust pipe. l ne rear portion of the said receptacle is provided with a s h p en lO l -A".W liQh h s an int g a y r ed ssk A he b s o h join so formed..- snd. i connec ed at such angle, relative to .the'edge of the i r c p tha n kJeiStiQQCQRtl' w th he sXisl Cent o -ths sssntss fBhI said eck A -is sdsn s l te fit t ex au P pe, an ay e. f b furcate fo m so that exhaust pipes of various diameters may be accommodated. In the-bottom portion of the end joint is provided an opening-A. A metal closure sleeve C has an openin C and is provided with a neckCF whic y be Of i i fo m ti n and whichfits the neck A of the said end joint.

he ecep e A in Wh thf hs fr ai in the said conduit.

A clamp collar D which is adapted to embrace the neck C when drawn by bolt D causes the neck A to be firmly secured to the pipe, thereby holding the closure sleeve at its set position on the end joint, and holding the receptacle at firm position with its neck A on the exhaust pipe, and with the yoke B at the inclined portion of the exhaust pipe.

A conduit, damper, and register arrangement, whereby the flow of heated air to the interior of the car may be controlled and at the same time may be independently released from the conduit, comprises a sheet metal conduit E which is adapted to fit in a neck rim A that surrounds an opening which is provided in the wall of the receptacle A. A circular head plate F of said conduit has flanges E which are adapted to rest on the edges of a hole provided for same 'in the floor 3 of the car. The said head plate F is of convex formation, as shown in Figure 5 and is provided with spaced openings F as plainly shown in Figure 7. In the walls of the conduit E are provided larger openings E spaced apart as shown in Figure'5. The relative areas of these openings aredetermined in accordance with the variations in the area of the car interior.

member to so cooperate that the openings F are maintained closed while the openings E are maintained open, is designated as a thimble, and it consists of a cylindrical metal shell G movable rotatively In the walls of this thimble are provided spaced apertures G and in the top plate H (and which said top plate registers immediately underneath the head'plate F of the conduit) are provided apertures H spaced to register with the openings E of the conduit E, and with the openings F of the head plate F respectively. The said top plate H of the thimble is journaled on a pinJ which is secured centrally of the head plate F, and is retained at its set position by the pressure of a coil spring K. An upturned lug H is provided on the top plate H of the operator member or thimble so that the latter may easily be shifted. The functions of the conduit E,

and of the thimble, are apparent; the opening E of the said conduit affording facility for theescapement of the air contents of the receptacle A, and the openings F of the head plate F affording facility for the passing of the air contents into the interior of the car. I make no claim to the foregoing conduit and thimble construction, and while I consider it the preferred form of register or damper, it is understood that any suitable form of register and control device may be used.

To install my invention, the muffler drum 4 is removed from the exhaust pipe. Receptacle A is then placed in position sur- A thus holding the several parts securely together, and in cooperative engagement with the said exhaust plpe. The said receptacle 1s retained in such engagement relative to said exhaust pipe, that free entry of the air at the forward end of same is assured and there is the utilization of the maximum area at the rear portion for the air which will have become heatedby the radiation from the exhaust pipe. The function of the opening A in the underside of the end joint, and which is kept normally closed by the closure sleeve C which is set at the position shown in the drawings, will be presently referred to.

A circular hole of proper diameter having been cut in the floor of the car, the conduit E is lowered to its position of engagement with the rim A, the flanges F of the head plate F are then secured by suitable wood screws to the car floor. The normal position of the thimble is that shown in the drawings, the openings F being closed, and the openings E being open.

The effect of the heated exhaust pipe 2 is to cause the air that is drawn into the receptacle A to become warmed. Its free escape through the openings E or through any other damper or register structure operates to prevent abnormal heating of the receptacle. When it is desired to have the warm air introducedto the interior of the car, the passenger by his foot or hand applied to the lug I-I simply shifts the thimble; by this shift of the thimble member, the openings E will have become closed, and the openings F will have become opened. The head portion of the conduit E, in combination with the shell portion of the thimble, then performs the function solely of a conduit, and the warm air is caused to pass upwardly andthrough the openings F. In varying the amount of warm air passing through the openings F there is coincidently, a variation of the amount of escapement through openings E so that any tendency of the receptacle to become overheated by reason of the shutting off completely or even partially, at the openings F is prevented.

It is obvious that the location, diameter, and length and formation of the conduit element, and the proportioning of the open.-v ings and apertures therein may be varied to suit requirements as may be suggested by the particular make of car upon which the invention may be applied. The conduit may extend from any desired location upon, or at any desired angle from the receptacle;

iii)

the ear.

more than one conduit may be used if desired; and the head plate element of the conduit may be arranged to enter any desired part of the interior of the car.

During the season of the year when the heating-0f the car interior is unnecessary,

the effect of the heat from theexhaust pipe in heater devices of this class as hitherto devised, is to raise the temperature of the contained air to such abnormal degree, that the heater receptacle, besides becoming dangerously overheated, is rapidly deteriorated and impaired. The only way to prevent such impairment, and to avoid the hazard of fire injury to the car, is to entirely remove the said heater device from The foregoing disadvantages are overcome by my invention. Clamp D is loosened, the closure sleeve C is then set at a position so that its aperture G registers with the opening A of the receptacle end joint. Thus, the air contents of the receptacle are permitted to escape freely and fully and any tendency of the receptacle to become overheated, is avoided. My improved heater device while available at all seasons when heat for the interior of the car is desired, is out of the way, does not have to be removed, and requires no attention after having been properly installed.

Wholesome air for the'interior of the car is at all times assured, the used air being replaced by a continuous supply of pure outside air entering the front portion of the receptacle. I

My invention is easily capable of being handled economically in commercial handling and transportation to the trade, and on account of the low cost at which the invention may be manufactured and installed for use, it is of utility for owners of cars of all classes.

l/Vhat I claim as my invention and desire to secure by Letters Patent, is: I

1. A heater device for automobiles, comprising a metal cylinder, a device to support the frontal portion of the cylinder in connection with an engine exhaust pipe, a cone shaped rear end joint having a divided neck to engage said pipe, there being an outlet aperture in said end joint, a cone shaped sleeve to 'movably embrace said end joint and having an aperture to register with the outlet aperture'of said end joint, and being provided with a divided neck to engage the neck of the end joint, and a clamping device to bind said necks together and to said exhaust pipe.

2. A heater device of the kind described, comprising a cylindrical receptacle adapted to be supported in position to' surround an engine exhaust pipe, the front of said receptacle being open, a cone shaped rear end joint having its neck center at a point distant from the axial center of said receptacle, there being an outlet aperture in said end oint, a sleeve movably mounted on said end joint to maintain the aperture in said end joint normally closed, there being an aperture in said sleeve to register with the aperture of the end joint, when the sleeve is shifted, and a device to secure the end joint and sleeve in connection with each other and to the exhaust pipe.

3. A heater device for automobiles, comprising a cylindrical receptacle, a flexible bar projecting from the front end of the receptacle and having a yoke to engage the top and sides of the engine exhaust pipe, said receptacle having a rimmed opening in the wall thereof adapted to receive conduit connections, a rear end closure joint having an outlet aperture therein and being provided with a divided neck to engage the exhaust pipe, a sleeve movably retained on said closure joint and having an aperture therein complemental to the aperture of the closure joint, the said sleeve being provided with a divided neck to engage the neck of the closure joint, a clamp to embrace the neck of said sleeve, and means to draw the clamp to tightened position. 

